I only received the one 87 octane tune on my tuner and I did not notice a noticeable fuel mileage difference. FYI-, I just ordered it from the website and did not actually speak to them directly. From my understanding, you can phone them directly and chat with one of the sales / tech team and ask about special tunes specifically for your situation.
I was actually going to reach out to you privately and inquire about your likelihood of purchasing but this answers my question. Like I noted previously, I love the tuner. The wireless gas pedal response was outstanding. The first time I drove it off the driveway, I pushed the gas like normal and launched. Very responsive. Please keep us up to date if you do purchase and how you like it.
Also, if you buy directly from 5startuning.com, use coupon code ď5STARĒ and get 5% off. About $27. I just tried it and it works.
WOW, I sound like a sales rep. LOL.